30147880 has 32 divisors (see below), whose sum is σ = 77523840. Its totient is φ = 10336320.

The previous prime is 30147877. The next prime is 30147881. The reversal of 30147880 is 8874103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30147881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53556 + ... + 54115.

It is an arithmetic number, because the mean of its divisors is an integer number (2422620).

Almost surely, 2^30147880 is an apocalyptic number.

It is an amenable number.

30147880 is an abundant number, since it is smaller than the sum of its proper divisors (47375960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30147880 is a wasteful number, since it uses less digits than its factorization.

30147880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107689 (or 107685 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 30147880 is about 5490.7085153011. The cubic root of 30147880 is about 311.2329668157.

The spelling of 30147880 in words is "thirty million, one hundred forty-seven thousand, eight hundred eighty".